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  • Title: [Association between sleep apnea syndrome and coronary artery disease].
    Author: Akasaka K, Akiba Y, Ishii Y, Fujiuchi S, Osanai S, Nakano H, Yamashita H, Kikuchi K.
    Journal: Nihon Kyobu Shikkan Gakkai Zasshi; 1997 Jan; 35(1):16-21. PubMed ID: 9071151.
    Abstract:
    Patients with sleep apnea syndrome often suffer from cardiovascular disease, but the incidence of coronary artery disease (CAD) with coronary spasm in these patients is not known. In the present study, 14 of 37 men with sleep apnea syndrome diagnosed by all-night polysomnography were suspected to also have CAD, based on the results of non-invasive clinical examinations. Coronary angiography confirmed the diagnosis of CAD either organic stenosis or coronary spasm in 8 of the 14 patients. Those 8 did not differ significantly from the 21 patients without CAD, with regard to coronary risk factors or to the severity of their sleep apnea (apnea index, 4% desaturation ratio, and nadir of SaO2). Eleven patients received intracoronary injections of acetylcholine, which induced coronary spasm in 4 (36.4%) and coronary contraction in 2 (18.2%). Coronary spasm was induced in 4 of the patients with CAD (50.0%). Although the pathophysiologic link between sleep apnea syndrome and CAD is still unclear, these results suggest that patients with this syndrome frequently suffer from CAD, particularly from coronary spasm.
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